On the Diagnostic of Road Pathway Visibility

Sight distance along the highway plays a significant role in road safety and in particular, has a clear impact on the choice of speed limits. Visibility distance is thus of importance for road engineers and authorities. While visibility distance criteria are routinely taken into account in road design, few systems exist for estimating it on existing road networks. Most available systems comprise a target vehicle followed at a constant distance by an observer vehicle, which only allows to check if a given, fixed visibility distance is available. We propose two new approaches for estimating the maximum available visibility distance, involving only one vehicle and based on different sensor technologies, namely binocular stereovision and 3D range sensing (LIDAR). The first approach involves the processing of two views taken by digital cameras onboard an inspection vehicle. The main stages of the process are: road segmentation, edge registration between the two views, 3D reconstruction of ...

• Type: Journal
• Year: 2016
• Where: CORR
• Authors: Pierre Charbonnier, Jean-Philippe Tarel, François Goulette
• Keywords: CORR 2016, Education